Directors’ Dealings | 23 January 2007 15:56

DGAP-DD: QSC AG english

Notification concerning transactions by persons performing managerial responsibilities pursuant to section 15a of the WpHG Directors’ Dealings notification transmitted by DGAP – a company of EquityStory AG. The person with duty of notification is solely responsible for the content of this announcement. —————————————————————————— Details of the person subject to the disclosure requirement Last name: Puschendorf First name: Bernd Company: QSC AG Function: Member of a managing body Information about the transaction with duty of notification Description of the financial instrument: Aktie der QSC AG ISIN/WKN of the financial instrument: DE0005137004 Type of transaction: Ausübung von Wandlungsrechten Date: 19.01.2007 Price: 1.16 Currency: EUR No. of items: 200000 Total amount traded: 232000.00 Place: Explanation for publication: exercise of convertible bonds within the framework of the stock option program 2001 – book-entry transfer Information about the company with duty of publication Issuer: QSC AG Mathias-Brüggen-Str. 55 50829 Köln Germany ISIN: DE0005137004 WKN: 513700 Index: TecDAX End of Director’s Dealings Notification (c)DGAP 23.01.2007 The registration of this notification was carried out on http://www.dd-meldung.de or http://www.directors-dealings.de ID 1245